James Riopelle; Effect of Spinal versus General Anesthesia in Study Comparing Three Methods of Using Local Anesthetics to Achieve Post–knee Arthroplasty Pain. Anesthesiology 2018;128(3):676. doi: 10.1097/ALN.0000000000002033.

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The authors of a recently published study1 comparing three local anesthetic methods of reducing post–knee arthroplasty pain recommended spinal anesthesia, but 23% of patients apparently still received general anesthesia. Would the authors be kind enough to share the postoperative pain score data for these two patient groups (i.e., spinal vs. general anesthesia)?